The Qwohog species was native to Hirsi.
During the Imperial Period, the planet environment was devastated. The planet was subjugated by the Galactic Empire for its rudic crystal mines during the Galactic Civil War.
The planet was later destroyed by the resurgent Empire's Galaxy Gun during Operation Shadow Hand.
- Galaxy Guide 12: Aliens — Enemies and Allies
- Alien Encounters
- Ultimate Alien Anthology
- The Complete Star Wars Encyclopedia
- The Essential Atlas